fix: babel default interop issue. (#6)

Author: knightedcodemonkey

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@knighted/module",
-  "version": "1.0.0-alpha.5",
+  "version": "1.0.0-alpha.6",
   "description": "Converts module differences in source files between ES and CommonJS.",
   "type": "module",
   "main": "dist/module.js",
@@ -75,8 +75,9 @@
   "dependencies": {
     "@babel/parser": "^7.27.0",
     "@babel/traverse": "^7.27.0",
-    "@knighted/specifier": "^2.0.0-rc.4",
-    "magic-string": "^0.30.10"
+    "@knighted/specifier": "^2.0.1",
+    "magic-string": "^0.30.10",
+    "node-module-type": "^1.0.2"
   },
   "prettier": {
     "arrowParens": "avoid",

package.json

@@ -1,5 +1,6 @@
 import MagicString from 'magic-string'
 import _traverse from '@babel/traverse'
+import { moduleType } from 'node-module-type'
 
 import type { ParseResult } from '@babel/parser'
 import type { File } from '@babel/types'
@@ -9,7 +10,15 @@ import { identifier } from './formatters/identifier.js'
 import { metaProperty } from './formatters/metaProperty.js'
 import { memberExpression } from './formatters/memberExpression.js'
 
-const traverse = _traverse.default
+/**
+ * Runtime hack to prevent issues with babel's default interop while dual building with tsc.
+ * @see https://github.com/babel/babel/discussions/13093#discussioncomment-12705927
+ * Temporary fix until I switch to oxc-parser.
+ */
+const type = moduleType()
+const traverse = (
+  typeof _traverse === 'function' || type === 'commonjs' ? _traverse : _traverse.default
+) as typeof _traverse.default
 
 /**
  * Note, there is no specific conversion for `import.meta.main` as it does not exist.